#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
//#define day "jian qi chang cheng"
//
//int main()
//{
//	printf("%19.4s\n", day);
//	printf("%s\n", day);
//	printf("%-19.4s\n", day);
//
//	return 0;
//}
int main()
{
	const double DAY = 3333.33;

	printf("%f\n", DAY);
	printf("%4.0f\n", DAY);
	printf("%3.0f\n", DAY);
	//printf("%10.3f\n", DAY);

	return 0;
}

